This particular type of larkspur (and there are many types of wild larkspur) is native in western North America from Alaska down through California and eastward as far as Alberta. Yes, they dwell in the Rocky Mountains, and hence, you see, their common name.
It’s because of it’s pernicious effect on grazing cattle that delphinium glaucum has been declared a prohibited noxious weed in both the U.S. and Canada. That means no one can import the seeds, although I’m not sure what the seed import ban accomplishes, since these are native plants in both countries. But if you are crossing the border, you’ll want to check your pockets for any stray delphinium seeds, just in case. You wouldn’t want to be charged with smuggling a prohibited weed, would you?
So are mountain larkspur good for anything besides looking tall and stately and deep purple? As you might imagine, that noxious label limits their use as food or medicine, but their flower juice can be mixed with alum to make a pretty blue ink. I’m not sure ink in delphinium blue is indelible, but it’d certainly be inedible.
No, no, go not to Lethe, neither twist Wolf’s bane, tight-rooted, for its poisonous wine….
Leaves of three,Let them be!
Petals five and one’s a hood?You must leave it in the wood!